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CS/CU-PE9DKECS/CU-PE12DKE
Air Conditioner
WARNINGThis service information is designed for experienced repair technici ans only and is not designed for use by the general public.It does not contain warnings or cautions to advise non-techical individuals of potential dangers in attempting to service a product.Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to serviceor repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
1 Features 2
2 Functions 3
3 Product Specifications 6
4 Dimensions 10
5 Refrigeration Cycle Diagram 12
6 Block Diagram 137 Wiring Diagram 14
8 Operation Details 15
9 Installation instructions 41
10 Installation and Serving Air Conditioner Using R410A
11 Disassembly of The Parts
12 Troubleshooting Guide
13 Technical Data
14 Exploded View
15 Replacement Parts List16 Exploded View
17 Replacement Parts List
18 Electronic Circuit Diagram
CONTENTSPage Page
Order No.
Guangzhou Matsushita Air Conditioner Co., Ltd.(GMAC) All rights reserved. Unauthorized copyingand distribution is violation of law.
CR
50
62
65
67
68
6970
71
72
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-----------------------------------
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R
GMAC0506048C3
h r D E L
A Y
h r D E L A
Y
O F F
O N
S E L E C T S
E T / C A N C E L
E R R O R R
E S E T
O N O F F
IN VERTER
A U T O
H E A T
C O O L
D R Y
O F F
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2
1 Features
High Efficiency
Air Quality Indicator
Auto Restart Control
Automatically restart after power failure
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Enviromental Friendly (For Refrigerant : R410A Model)
12-hour Timer Setting
Zero ozone depleting potential and low global
warming potential by using R410A refrigerant.
Comfort Environment
Air filter with function to reduce dust and smoke
Breakdown Self Diagnosis function
Removable and washable Front Panel
Delay ON Timer and OFF Timer
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Operation START/STOP
Operation Mode Selection
Au toma tic Operat ion
Heating Mode Operation
Cooling Mode Operation
Soft Dry Mode Operation
Mode
Indoor Fan Speed Selection
Low Speed
Med- Speed
High Speed
Automatic Speed
Ai rf low Direct ion Cont ro l
Horizontal Airflow Direction Control-Auto Control-Manual Control
Vertical Airflow Direction Manual Control
Room Temperature Setting
Temperature Setting(16 to 30 )
Auto Operat ion
Timer Operation Selection
Stop/Start Operation Control
(set the ON/OFF Timer hourly later)
Set /Cancel Timer Operation
Set timer/Cancel the set timer
2 Functions
Remote Control
3
OFF/ON
MODE
FANSPEED
AIR
SWING
TEMP
TIMEROFF/ON
TIMERSET/CANCEL
Turn on/off the air conditionor
When stop the operation by pressing
OFF/ON button,the cursor key points
to OFF.
By pressing SET button for 5seconds
continuously to switch to set the sensor
sensitivity.
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
hr DELAY
hr DELAY
OFF ON
SELECT SET/CANCEL
ERROR RESET
O N O F F
INVERTER
AUTOHEAT
COOLDRYOFF
Med Speed
Med+ Speed
CHECKCheck Point
Self diagnosis function
RESETReset Point
ERROERESET
ERROE Reset Point
Clear memory data
To reset the indoor unit.Time Changing Button
Change the setting time.
A,B
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Indoor Unit
Force Cooling Operation
When the remote control cannot be used or for repairing and testing ,please use thisbutton.
Power Switch ON/OFF
Operation Indication Lamps
Power (green)
Timer(orange)
Lights up in operation;Blinks during Hot Startoperation and
determining AutoOperation mode
Operation ModeCooling/Heating/Soft Dry /Auto Operation
Time Delay Safety Control
The unit will restart operation in 3-4minutes after each pause.
4
Keep pressing this button for 5 seconds to startthe force cooling operation.
Auto SwitchButton
Air qual ityGreenOrangeRed
Anti-freezing Control for the Evaporator
Cooling or Soft Dry Operation
Warm Booting Control
Indoor fan starts running when indoor
piping reaches 19 or above.temperature
High,Med+, Med, Med-,Low
Auto Fan Speed
Indoor Fan Speed Control
Automatic Ai rf low Direction C ontrol
The louver automatically swings up and downFive Manual Airflow Direction Control
Ai rf low Di rect ion Cont ro l
Delayed On-timer Control
For cooling or soft dry mode, the unit
starts 15 minutes before the set time with
the remote control, but for heating mode
30 minutes before the set time.
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Force Heating Operation
Keep pressing this button for 8 seconds to startthe force heating operation.
Signal Receiving Sound
Keep pressing this button for 16 seconds to turnoff or turn on the signal receiving sound o r H14 Abnormality Detection Mode.
Light up in Timer Setting.Blinks in Self Diagnosis Control
Au tomat ic Restar t Cont ro l
Operation is restarted after power failureat previous setting mode.
Different Remote Controlling Setting
Keep pressing this button for 11 to changedifferent remote controlling setting(A B)Mode.
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Outdoor Unit
5
Panasonic
Overload Protector
Inner protector
Once the compressor is activated, it does notstop within 30 seconds. It stops immediately withremote control ON/OFF button.
4-way Valve Control
If the unit is stopped during HeatingOperation, the 4-way valve will remain inheating mode operation for 3 minutes.
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Total Running Current Control
30 Seconds Forced Operation Control
Deice Operation
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6
3 Product Specifications
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Cooling Capacity
Heating Capacity
Moisture Removal
Power Source
Ai rf low Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
ElectricalData
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length(Number of core-wire)
Dimensions
Net WeightCompressor
Air Circulation
Unit
kW
kW
L /h
PhaseV
Cycle
m /min3
m /min3
m /min3
m /min3
dB(A)
W
A
W/W
A
Input
Running Current
EER/COP
Starting Current
Inner Diameter Length
Height
WidthDepth
Type
Motor TypeRated output
type
Motor type
FanSpeed
LowMedHigh
Rated OutputInput
InchInchInchInchmmm
mm
mmmmkg
W
WWrpmrpm
rpm
CS-PE9DKE CU-PE9DKE
2.50(0.90-3.00)
3.30(0.90-4.00)
-
Single23050
-
-
-
-
Cooling:high46Heating:high47
Cooling:high42,Low27Heating:high42,Low27
Cooling:730(190-1000)Heating:820(170-1110)Cooling:3.4Heating:3.7Cooling:2.95(2.58-4.05)Heating:3.46(3.10-4.53)
3.7G:half union3/8"L:half union1/4"G:gas side3/8"L:liquid side1/4"
G:3-way valve3/8"L:2-way valve1/4"G:gas side3/8"L:liquid side1/4"
----
-
-
m 3 core-wire/1.5mm 2
280
7991838
540
78028930
-
-
Cross-flow fan
-30
Rotary(1 cylinder)Rolling piston typeInduction(6 poles)
650
Propeller fan
Induction(6 poles)-
15
-840 60
1080 601370 60
-
670 60
120.651.9
6
7.7
9.8
OUTLET
INTAKE
SIDE VIEW TOP VIEW
22.5
Induction(8poles)
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7
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
HeatExchanger
DescriptionTube MaterialFin Type
FPI
Refrigerant Control DeviceRefrigeration Oil
Refrigerant (R410A)ThermostatProtection Device
Capillary
Ai r Fi lt er
Refrigerant Circulation Control Device
Fan Motor Capacitor
Unit CS-PE9DKE CU-PE9DKE
LengthCirculationInner Diameter
mm
(c.c)
g
mmL/minmm
F , V
Evaporator Copper
Slot type
(Plate fin configuration,forced draft)
2 x 15 1X24
Condenser Copper
Corrugation type
20
610x252x25.4
--
-
----
Electronic Control
P.P. Honeycomb
18.5
Capillary Tube
840sensor
Inner protector 600 10
8.15 0.21.3
F ,1.2 450V
Specifications are subject to change without notice for further improvement.
Dimensions
Rows/Stage
Capillary
RB68A or Freol Alpha68M
726x504x18.2
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8
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Cooling Capacity
Heating Capacity
Moisture Removal
Power Source
Ai rf low Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
ElectricalData
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length(Number of core-wire)
Dimensions
Net WeightCompressor
Air Circulation
Unit
kW
kW
L /h
PhaseVCycle
m /min3
m /min3
m /min3
m /min3
dB(A)
W
A
W/W
A
Input
Running Current
EER/COP
Starting Current
Inner Diameter Length
HeightWidthDepth
Type
Motor TypeRated output
type
Motor type
FanSpeed
LowMedHigh
Rated OutputInput
InchInchInchInchmmm
mmmmmmkg
W
WWrpmrpmrpm
CS-PE12DKE CU-PE12DKE
3.15(0.90-3.80)
4.10(0.90-5.00)
-
Single23050
-
-
-
-
Cooling:high48Heating:high50
Cooling:high42,Low30Heating:high42,Low33
Cooling:900(190-1270)Heating:1110(170-1410)Cooling:4.2Heating:4.9Cooling:2.98(2.57-4.05)Heating:3.18(3.07-4.53)
4.9G:half union3/8"L:half union1/4"G:gas side3/8"L:liquid side1/4"
G:3-way valve3/8"L:2-way valve1/4"G:gas side3/8"L:liquid side1/4"
----
-
--
m 3 core-wire/1.5mm 2
280799183
8
54078028934
-
--
Cross-flow fan
-30
Rotary(1 cylinder)Rolling piston typeInduction(6 poles)
650
Propeller fan
Induction(6 poles)-
25
-950 60
1170 601380 60
-
770 60
27.4
120.651.9
6.8
8.4
9.9
OUTLET
INTAKE
SIDE VIEW TOP VIEW
Induction(8poles)
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9
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Specifications are subject to change without notice for further improvement.
HeatExchanger
DescriptionTube MaterialFin Type
FPI
Refrigerant Control DeviceRefrigeration Oil
Refrigerant (R410A)ThermostatProtection Device
Capillary
Ai r Fi lt er
Refrigerant Circulation Control Device
Fan Motor Capacitor
Unit CS-PE12DKE CU-PE12DKE
LengthCirculationInner Diameter
mm
(c.c)
g
mmL/minmm
F , V
Evaporator Copper
Slot type
(Plate fin configuration,forced draft)2 x 15 2X24
Condenser Copper
Corrugation type
20
610x252x25.4
--
-
----
Electronic Control
P.P. Honeycomb
17
Capillary Tube
1020-
Inner protector 300 10
11.3 0.21.3
F ,1.8 450V
Dimensions
Rows/Stage
Capillary
X504x18.2726696
565 2012.3 0.2
1.5
RB68A or Freol Alpha68M
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4 Dimensions
10
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Indoor Unit
B A 2 5 4
(631)
(382) (118)(131)
9 5
(420) (50)
Front View
Installation Plate HookGas Side
LiquidSide
Drain Port
Air in take
2 8 0
Side view183
Air outl etLeft PipingHole
Right PipingHole
(100)
1 4 1
17.1
57
Unit : mm
Installation plate (Front View)
CS-PE9DKECS-PE12DKE
hr DELAY
hr DELAY
OFF ON
SELECT SET/CANCEL
ERROR RESET
ON O FF
INVERTER
AUTOHEATCOOL
DRYOFF
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Outdoor Unit
CU-PE9DKE
Unit : mm
CU-PE12DKE
11
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
10cmor more
10cmor more
100cmor more
48
1 8
. 6
INVERTER
780 57570
2 8 9
105
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CS/CU-PE9DKECS/CU-PE12DKE
5 Refrigeration Cycle Diagram
12
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
INDOOR UNIT
INTAKE AIRSENSOR PIPING
SENSOR
HEAT EXCHANGER(EVAPORATOR)
CoolingHeating
GAS SIDE3-WAY VALVE
LIQUIDSIDE 2-WAYVALVE
OUTDOOR UNIT
CAPILLARY TUBE C3
CAPILLARY TUBE C1
CAPILLARY TUBE C2
OUTDOOR AIRSENSOR
HEAT EXCHANGER(CONDENSOR)
4-WAY VALVE
COMPRESSOR
PIPINGSENSOR
COMPRESSORSENSOR
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C S - P E 9 D K E / C U
- P E 9 D K E
C S - P E 1 2 D K E / C U
- P E 1 2 D K E
F M
F M
F M
2 3
O U T D O O
R U N I T
I N D O O R
U N I T
T H E R M A L
F U S E
4 - W
A Y
V A L V E
R E A C T A N C E
6 Block Diagram
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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CS-PE9DKE/CU-PE9DKE7 Wiring Diagram
14
CS-PE12DKE/CU-PE12DKE
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
(RED)
(BLUE)
(YELLOW)
GRY
GRY+
- +
-
+
+
AC-WH T(WHITE)
AC-BL K(BLACK)
DATA(RED)
BL W R
CT101
G
G
CN-TH(WHITE)
CN-TANK(WHITE)
34
1
3
Fan Motor Y
Y
N
P
++ F
U S E 2
T 3
. 1 4 A L 2 5 0 V
REACTOR
OUTDOOR UNIT
POWER SUPPLY CORD
BRBL
R
B
FUSET 2.5A L 250V
AUTO SW
CN-DISP(Y)
CN-STM(W)
CN-TH(Y)
CN-FM(W)
R
BLWBY
ELECTRONICCONTROLLER
(DISPLAY,RECEIVER)
SENSOR(PIPING TEMP.)
BR
R
O
Y
P
MOTOR
MOTOR
ELECTRONICCONTROLLER
(MAIN)
3
WIRELESS REMOTE CONTROL
3
W
U - V
U - W
V - W
L6LAHAG00001
TERMINAL
FUSE
12
SENSOR(PIPING TEMP)
SENSOR(AIR TEMP)
SENSOR(COMP. TEMP)
COIL COMP(4-WAY VAVLE)
R
B
Y
COMPRESSOR
Y/G
Y Y
BB
C APA CI TO R F m2
Fm1
TERMINAL
Y/G
COMPRESSOR TERMINAL
YELLOW
REDBLUE
TRADE MARK
INDOOR UNIT
W
W
W
W
W
W
W
W
W
W
CN-DISP(W)
CU-PE9DKE CU-PE12DKECONNECTING
Y- B MY-R A
OUTDOOR FAN MOTOR RESISTANCE( )
COMPRESSOR RESISTANCE( )
CONNECTING
L6LAJAG00001
290
287
CU-PE9DKE CU-PE12DKE
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Single press
Mode Selecting Button
LCD of Remote Control HEAT AUTO
t 500ms
Keep depressed( less than 500ms)
LCD of Remote Control
Signal Transmitting
HEAT AUTO
t 500ms
2.Shift time of the Mode selection button
COOL DRY
Keep depressed continuously
LCD of Remote Control
T1 T T T T2
T1=1s T=250msT2 250ms t 500ms
If the ON/OFF button is pressed after the operation mode is set, or change the operation mode during operation,
or the signal is received from the remote controller, the indoor indicator will flash or light up to start the operation.
Fan Speed Button
1.The display on the remote controller changes as follow by pressing the AIR SWING button.
2.If the ON/OFF button is pressed after the fan speed mode is set, or change the fan speed mode during operation,
or the signal is received from the remote controller, the indoor indicator will flash or light up to start the operation.
3.The shift time of the fan speed button is the same to that of mode selecting button.
HEAT AUTO COOL DRY HEAT AUTO
Signal Transmitting
Signal Transmitting
Mode Selecting Button
Mode Selecting Button
AUTO
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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Temp Adjusting Button
1.Press this button to change the set temperature
Increase the set temperature(Max.30 )
Decrease the set temperature(Min.16 )
2.If the ON/OFF button is pressed after temperature is set, or change the temperature during operation,
or the signal is received from the remote controller, the indoor indicator will flash or light up to start the operation.
Timer Set Button
1.The Function of the Timer-Setting Button
1) SELECT Button
2) Timer Selecting Button A and B
3) SET/CANCEL Button
The set time can be changed with manner of 1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4... By pressing the buttons.
Pressing th e button A can change the time for ON Timer and OFF Timer, off time for OFF-ON Timer, on time for
ON-OFF Timer; Pressing the button B can change the time for on time for OFF-ON Timer and off time for
ON-OFF Timer setting.
Pressing the button to set or cancel the set timer during the timer setting or activate the previous timer setting.
Af ter the timer s et ti ng is de te rmined, “ON” or “OFF” will st op fl ashing . If the t imer se tt ing is cancel led, “ON” or
“OFF” will disappear on the remote control display.
The time on the remote control will change every hour.
OFF Timer and OFF- ON Timer can only be set during the operation;
Timer setting can operate only once.
If the OFF/ON button on the remote control or the AUTO Switch on the indoor unit is pressed, the timer settingwill be cancelled.
If Auto Restart Control occurs , timer setting will be cancelled.
During the operation, if the ON Timer or ON-OFF Timer is set, the operation will be stopped.
When the airconditioner is in operation
OFF Timer Setting Exit Timer SettingOFF-ON Timer Setting
hr DELAY
OFF
A B
hr DELAY
hr DELAY
OFF ON
A B
When the airconditioner is turned off.
Make sure that the cursor key on the display of remote control points to OFF .
ON Timer Setting
hr DELAY
hr DELAY
O N O FF
A B
hr DELAY
O N O FF
A B
Eixt Timer SettingON-OFF Timer Setting
Notes:
FANSPEED
AI RSWING
By pressing this button for 5 seconds continuously, the number indicating the air quality sensor sensitivity will
appear in the remote control display. Then press or button to increase pr decrease the sensitivity.
Indicate
Sensitivity0 1 2 3
Tu rn o ff t he a ir q ua li ty Nor ma l S ta nd ard h igh t
2
1
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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2.Timing Chart of Timer-Setting
1:During timer operation changing the set time.
2:During timer operation press the ON/OFF button to cancel the OFF-Timer and the timer indicator on
the indoor unit will go off.
Timer Indicator
Remote Control LCD
Operation Indicator
Indoor Unit
3 hours later OFF
12 hours
OFF Timer Setting
1) OFF Timer
3 hours 2
Initial Time Changed Time
Timer Indicator
Remote Control LCD
Operation Indicator
Indoor Unit
5 hours later ONON Timer Setting
5 hours
Initial Time Changed Time
Preparation for operationOFF/ON Button
2) ON Timer
About Cursor Key Which Points To “OFF” On Remote Control
PRESS "OFF/ON" BUTTON
When the ON/OFF button on the remote control is pressed, the cursor key which points to “OFF” will appear or disappear to indicate the ON/OFF status of the air conditioner.
FANSPEED
AI RSWING
1.
2.
The air conditioner is running but the cursor key which points to “OFF” appears. The air conditioner can bestopped with any button (Except for “ON/OFF”, “TIMER SET”, “TIMER ON”) pressed.
The air conditioner is on standby, but the cursor key which points to “OFF” disappears. The air conditioner canbe started with any button(Except for “ON/OFF”, “TIMER SET”, “TIMER OFF”) pressed.
For some reason (Ex. The signal of the remote control does not reach the signal receiver of the indoor unit.), thedisplay of the remote control will not correspond with the actual ON/OFF status of the indoor unit:
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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The airflow direction will change as below by pressing the AIR SWING button.
AUTO
Airflow Direc tion:
Display of Diagnosis
Refer to Diagnosis section.
Change the Code of Remote Controller
Change the code of remote controller by joining or cutting jump wire on the remote controller and indoor PCB.
Four codes(A,B,C,D) can be selected.
J B
Inside the battery box of
remote controller.
On indoor PCB
J----B
Indoor PCB
Short Open
A B
C D
Short
Open
Air Swing Button
8.2 Operation and Display of Indoor UnitAUTO Operation Switch
SW ON
AUTOOperation
ForcedCOOL
ForcedHEAT
Various SettingMode
IndividualCounter-action
Number of beep1 2 3 4
5s 8s 11s 16s 21s
Function
1. When the switch is pressed between 0 to 5 seconds, Auto Mode operation starts to function.
2. When the switch i s pressed between 5 to 8 seconds, the unit is forced to operate i n Cooling Mode.
3. When the switch i s pressed between 8 to 11 seconds, the unit is forced to operate in Heating Mode.
4. When the switch i s pressed between 11 to 16 seconds and together with the signal from the r emote controller,
the unit can be changed to different controlling setting .
5. When the switch i s pressed between 16 to 21 seconds, either H14 error detection selection mode or remote
controller’s signal receivi ng sound can be cancelled or turned on.
6. If the intake air temperature is less than 16 and the Forced Cooling is activated, because the prior operation
mode is heating, the compressor will stop for 3 minutes to start the Forced Cooling operation.
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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Indoor Unit Indicator
Operation(Green)
Timer (Orange)
ON OFF FLASH
Run StopHot start, deice control,mode judging and ON-Timer Operation detecting.
Timer set Timer not set Malfunction happens.
Air Quali ty(GreenOrangeRed )
The air quality can be detected automatically by the air quality sensor and shownby the color of the air quality indicator as bellow..Color of indocator :Green Air qualuty: Normal
Orange Poor Red Bad
Indoor Fan Motor Control
1. Basic Fan SpeedFan speed is determined by the setting of the remote control. And W5~W6 can be calculatedaccording the equations below:Those operation modes W4:Low , W8 : Hi , W10 have been regulated in the EEPROM data.Me- : W5=W4+W10Me : W6=W5+W10Me+ : W7=W6+W10
Cool.Dry
REMOTECONTROL
FAN SPEED
ROTATINGSPEED
SHI HI Me Me- Lo- Slo Sslo
W9C W8C Calculated W4C W2C W1 C
REMOTECONTROL
FAN SPEED
ROTATINGSPEED
SHI HI Me Me- Lo Lo- Slo Sslo
W8W W4W W3W W2 W W1W
Heat
8.3 Common Features
W3C
Lo
Calculated
Me+
Me+
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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Basic fan speed of indoor unit
2. Indoor Fan Control
Cool/Dry Operation
Cool Operation Dry Operation
Me
Hi
Lo-
Lo
Slo
Protection Operation
Forced Cool
Minimum ControlMode judging for AutoOperation ON-Timer Operation detecting
Mode judging duringON-Timer detecting
Auto Fan
Manual Fan Setting of Remote
Auto Fan
Manual Fan
O t h e r
t h a n a b o v e
O t h e r
t h a n a b o v e
Other thanabove
Other thanabove
Other thanabove
Normal Auto Fan
Fan Speed SetSlo
P E 9 D K E P E 1 2 D K E
S H I W 9 C 1 4 2 0 1 4 3 0
H I W 8 C 1 3 6 0 1 3 7 0
M e + W 7 C 1 1 9 0 1 2 7 0
M e W 6 C 1 0 7 0 1 1 6 0M e - W 5 C 9 5 0 1 0 5 0
L o W 4 C 8 3 0 9 4 0
L o - W 3 C 7 7 0 8 8 0
S lo W 2 C 7 4 0 8 4 0
S S L o W 1 C 6 6 0 7 2 0
In te rv a l W 1 0 C 1 2 0 1 1 0
S H i W 8 W 1 4 2 0 1 4 4 0
M e + W 7 W 1 2 7 0 1 3 4 0
M e W 6 W 1 1 5 0 1 3 6 0
M e - W 5 W 1 0 3 0 1 1 8 0
L o W 4 W 9 1 0 1 1 0 0
L o - W 3 W 6 7 0 8 0 0
S lo W 2 W 5 8 0 5 8 0
S S L o W 1 W 4 0 0 4 0 0
In te rv a l W 1 0 C 1 2 0 8 0
C O O L
H E A T
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Heat Operation
Protection Operation
Forced Heat
O t h e r
t h a n a b o v e
Mini-mumCon-trol
Me
Shi
Lo-Mode judging in Auto OperationPreparing Operation of Timer-ON operation
Hot Start
Deice Control
Low Temperature Control
Maximum
Control
Relay OFF(Comp OFF)
Indoor Piping Temp Control(Auto Fan)
Other thanabove
Detection of Timer-ONOperation
Other thanabove
Auto Fan Speed
Manual Fan Speed
Auto Fan Speed
Manual Fan Speed
Stop
Stop
SSHi
SLo- or SSLo
Refer to the following contents
Lo
Setting On Remote Control
Auto
Setting On Remote Control
Auto Fan Speed for Cooling Operation
a b c d e f g h a b
No.C
No.B
No.A
Auto Fan Speed for Heating OperationRefer to Piping Temperature Control.
Following eight patterns repeat over and over for auto fan speed. Each pattern persists tensecond.
Temp. Of outdoor unit under 35 Temp. Of outdoor unit above 35
PE9DKE PE12DKE
No.A
No.B
No.C
970
990
950
1070
1090
1050
PE9DKE PE12DKE
No.A
No.B
No.C
1130
1150
1110
1220
1240
1200
UNIT: rpm
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3. Deodorizing Control
This type of control is applicable on Cooling Mode and Soft Dry Mode operating only.During cooling or soft dry operation with automatic fan speed, the unit will operate as state below for deodorizing purpose.
Deodorising Status
Compressor status
Period(sec)
Indoor fan speed
1 2 3 4 5
ON OFF
40 50 20 90 40
OFFOFFSlo
…
Note*SloOFF
ON
OFF
OFF
ON
Note*:Fan speed is automatic for cooling mode and Slo for soft dry mode.
4 5 4.5.4....
20 90
OFFSlo
COMP
FM
1
ON
Outdoor Fan Motor Control
1. Specification of outdoor fan motor
Model Fan Motor Speed(rpm)
CU-PE9DKE
CU-PE12DKE
Induction Motor(6 Poles 1 speed)
Induction Motor(6 Poles 1 speed)
670
770
2. Operation of the fan motor
The outdoor fan runs during the operation of the compressor or within 30 seconds after the compressor stops.
30 seconds
ON
OFF
OFF
ON
ON
ON
Compressor
Outdoor Fan
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Frequency for Compressor Operation
1. Basic FrequencyIf the frequency for the compressor calculated is prohibited, 1 Hz larger than this calculatedone will be selected.
Cool Dry Heat12 46 80 12 46 8013 47 81 13 47 8114 48 82 14 48 82 1215 49 83 15 49 83 1216 50 84 16 50 84 1217 51 12 85 17 51 8518 12 52 9 86 18 9 52 8619 53 87 19 53 8720 54 88 20 54 8821 55 89 21 55 8922 56 9 90 22 56 12 9023 57 91 23 57 91
24 58 92 24 58 9225 59 93 25 59 9326 60 94 26 60 9427 61 95 27 61 9528 62 96 28 62 9629 63 97 29 63 9730 64 98 30 64 9831 65 99 31 65 9932 66 9 100 32 66 12 10033 67 101 33 67 12 10134 68 102 34 68 12 10235 12 69 103 35 69 9 10336 9 70 104 36 70 10437 71 105 37 71 9 10538 12 72 106 38 72 9 10639 12 73 107 39 73 10740 74 108 40 74 10841 9 75 109 41 75 10942 76 110 42 76 11043 77 111 43 77 11144 12 78 112 44 78 12 11245 12 79 113 45 79 113
2. Starting ControlWithin 300 seconds after the start-up of the compressor, the frequency for the compressor will change as below.
Start-up after the micron reset Start-up after thermal off ( Set Temp Reached, heating mode)
Start-up under other conditions
40 4040 40\ 110
60-120s120-300
Time From Start-up of Compressor
Min.Hz Max.Hz
60 40 4040 40\ 119
Max.Hz
6060-120s120-300
Time From Start-up of Compressor Min.Hz
38 3838 38\ 119
60-120s120-300
Time From Start-up of Compressor Min.Hz Max.Hz
60 40 4040 40\ 110
Max.Hz60
60-120s120-300
Time From Start-up of Compressor Min.Hz
Start-up after thermal off ( Set Temp Reached)
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Protection Control
1.The compressor will not start for 3 minutes after the stop of the operation.2.This control is not applicable if the power supply is turned off and turned on again.
A. Time Delay Safety Control
B. 30 Seconds Forced Operation
1.Once the compressor starts operation, it will not stop for 30 seconds.2.However, it can be stopped using remote controller or Auto Switch on indoor unit.
C. Total Running Current Control
1.When the total outdoor unit running current(AC) exceeds I1 value, the frequency for compressor will decline.
2. If the running current is less than I1 value for 10 seconds, the frequency for compressor will increase.
3.However, if the total outdoor running current exceeds 17.0A, compressor will be stoppedimmediately for 3 minutes.
Current Value (A)(I1)
38.537.5
A
B
D. IPM Protection Control
1.DC Peak Current Control1>When electric current to IPM exceeds set value of DC17.3 1A,the compressor will stop. It will
restart after three minutes.
2>If the set value is exceeded again within 30 seconds, the operation will restart after one minute.If this condition repeats continuously for seven times, all indoor and outdoor relays will be cut off.
3>Error code [F99] will be displayed.
2.Overheating Protection ControlWhen the IPM temperature rises to 90.0 , compressor will stop immediately.Compressor restarts after three minutes if the temperature decreases to 85 .
Outdoor Piping TempPE9DKE PE1DKE
A 4.5 6.1B 4.4 6.0
4.0 5.04.0 5.0
COOL
HEAT
112
108
105 96
95
Comp OFF
8Hz/45Sec down.
113Hz
Free
Protection Control
E. Compressor Overheating Prevention Control
The frequency is also controlled by the temperature of the compressor.
97
Min.17Hz
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1.When the conditions listed in the table occur, the compressor stops and restarts after three minutes.2. If this continuously occur for twice within 20 minutes, all indoor and outdoor relays will be cut off.3.This control is not applicable for deice operation.
F. Compressor Protection Control (Gas Leakage)
G. Low Operation Frequency Protection Control
If one of the following conditions exists, the compressor will run with the frequency of 40 Hz
Intake Air Temp 30 or 15 _______
Outdoor Temp 38 or 16 24 or 4
Indoor Piping Temp 30 0
Operation Mode Cool/Dry Heat
4-way Valve Control
1. The 4-way valve will be turned on as the compressor starts to operate and remains on all the time during the heating
operation.
2.The 4-way valve remains on for less than 3 minutes after heating operation is stopped.
3.The 4-way valve remains off during cooling and soft dry operation.
4.If the operation is shifted from cooling or dry to heating mode, the switching of 4-way valve will be delayed for 3 minutes.
5.Heating Operation Mode
Four minutes after the start of the operation, if the indoor piping temperature detected is lower than 0 , the operation
will stop.( Restarts in 3 minutes) If this situation happens 4 times within 30 minutes, error code “F11” will be displayed.
6.Cooling Operation Mode
Four minutes after the start of the operation, if the indoor piping temperature detected is higher than 45 , the operation
will stop ( Restarts in 3minutes). If this situation happens 4 times within 30 minutes, error code “F11” will be displayed.
HeatingComp
4-way ValveStatus
4-way ValveDrive Signal
VoltageAcross4-way Valve
14V
5V0V2s
Comp Frequency 45Hz or Above 64Hz or Above 58Hz or Above 73Hz or AboveTotal Outdoor Current Ib I 1.3 Ib I 1.6 Ib I 1.3 Ib I 1.6Indoor Piping Temp 20 or Above 25 or Less 20 or Above 25 or LessOperation Mode Cool/Dry Heat Cool/Dry HeatModel PE9DKE PE12DKE
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Airflow Direc tion Control
A. Vertical Airflow Direction
Notes:Manual Airflow Direction: The vertical airflow vane will be fixed at the angle desired according to the instructions of remote
controller no matter the operation is cooling, soft dry or heating mode. Auto Airflow Direction: Cool : The vert ical ai rflow vane wil l swing up and down wi thin the range indicated in the
Form above.Dry : Remain in the horizontal direction.
Heat : The vertical airflow vane will change according to indoor piping temperature as below..
C
B
A
VerticalAirflow VaneIndoor PipingTemperature
127
33
127
30
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
27
7° 14° 21° 28° 35°
7° 14° 21° 28° 35°
0° 15° 30° 45° 60°
C
B
A
Auto Airflow 7°
7°~35°
Heat
Manual Airflow
Auto AirflowDirection
14°
52°
7°
Dry
Manual Airflow
Vane Angle
Cool
Manual Airflow
Auto Airflow
Intake air Temperature
Free
A
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C. Mode Judgement for Auto Operation
When the air-conditioner is turned on, if manual airflow direction is selected and the angle is lower than the lower limitfor heating operation, the airflow direction will be changed to the lower limit for heating mode. If Cooling operation isdetermined during the mode judgement, the airflow direction will be shifted to lower limit for cooling operation.
D. About Timer-Setting
During On-Timer operation, the airflow direction can be changed between Manual and Auto.
Initializing When Power-On Upper Limit
Auto Opera tion Upper Limit Position Previously Set
Shifted to A uto Mode Same to Cool/Dry/Heat Same to Cool/Dry/Heat
Airflow Mode Setting Auto Manual
Lower Limit
Note:
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
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B. Display of Error Code1.Keeping the CHECK button on the remote controller depressed for 5 seconds, error code ranging from H11 to H99
can be displayed on the remote controller.2.The error code is changed and diagnosis signal is transmitted to the indoor unit by pressing the Temp Up button on
the remote control.3.When the malfunction of the air-conditioner matches the error code on the remote control, four beeps can be heard
from the indoor unit and the operation indicator will light up.4.Keep the CHECK button depressed continuously for 5 seconds to cancel the diagnosis function.
Self Diagnosis
A. About Self DiagnosisWhen the air-conditioner is stopped due to malfunction detected by itself, the operation can be restarted using AUTOSwitch on the indoor unit. In forced operation, the frequency for compressor and fan speed can not be changed and thesignal receiving sound is different.
Normal Operation ON: “pep”Forced Operation ON: “pep”,“pep”,“pep”,“pep”Stop:“pep”Note: Refer to the Diagnosis Code Table for the malfunction when forced operation is not available.
TIMER POWER TIMER POWER
Indoor Unit Indoor Unit
“Pep” “Pep, pep, pep, pep”
The error code doesn’t match themalfunction of indoor unit.
The error code matches themalfunction of indoor unit.
Remote controller
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C. Diagnosis Code Table
Code Abnormality/Protection Judgment Check Emergency
Operation
H00 Normal
H11 Indoor/Outdoor abnormal
communication>1minute after startingoperation
Connecting cable, Indoor /outdoor PCB
H14 Indoor intake air temp sensor
abnormality- Intake air temperature sensor(
defected or disconnected) X
H15 Outdoor compressor temperature
sensor abnormalityContinue for 5 sec. Compressor temperature
sensor(defected or disconnected) X
H16 Outdoor Current Transformer open
circuit- Outdoor PCB, IPM module
X
H19 Indoor fan motor mechanism lock - Indoor PCB, fan motor X
Heat exchanger temperaturesensor
(defected or disconnected)
H25 Air filter abnormality -
H27 Outdoor air temperature sensor abnormality
Continue for 5 sec Outdoor temperature sensor(defected or disconnected)
H28 Outdoor heat exchanger temperature
sensor abnormality
Continue for 5 sec. Outdoor heat exchanger sensor (defected or disconnected)
H30 Discharge temperature sensor
abnormality
Continue for 5 sec. Discharge temperature sensor (defected or disconnected)
H33 Incorrect connection of
Indoor/Outdoor cable
- Indoor/outdoor supply voltageX
H97 Outdoor fan motor lock Twice within 30 minutes Outdoor fan motor X
Air filter dirty
Air circulation short circuitInsufficient refrigerant
Air filter dirty
4-way valve
V-coil
F16 Cooling/Dry cycle changeover
abnormality4 times occurrencewithin 30 minutes
Indoor PCBX
F90 PFC control4 times occurrencewithin 20 minutes
Voltage at PFCX
No refrigerant
(3-way valve is closed)
F93 Compressor abnormality4 times occurrencewithin 20 minutes
Compressor X
F95 Cool high pressure protection4 times occurrencewithin 20 minutes
Outdoor refrigeration cycleX
Excessive refrigerant
Improper heat radiation
IPMInsufficient refrigerant
Compressor Excess refrigerant
Improper radiation
Outdoor PCB
IPM
Compressor F99
Outdoor Peak Current Protection
Control
4 times occurrencecontinuously within 30
minutes X
F98 Total running current protection3 times occurrencewithin 20 minutes X
F97 Outdoor compressor overheating
protection
4 times occurrencewithin 20 minutes X
F96 IPM overheating protection
-
X
F91 Refrigeration cycle abnormality2 times occurrencewithin 20 minutes X
F11 Cooling/heating cycle changeover
abnormality
4 times occurrencewithin 30 minutes X
H99 Indoor heat exchanger anti-freezingprotection
Indoor heat exchanger freezing -
H98 Indoor high pressure protection-
-
H23 Indoor heat exchanger temperature A
sensor abnormality
Continue for 5 sec
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30
1 .Frequency of the compressor For prevention of freezing of the indoor evaporator, the frequency of the compressor will be changed according tothe indoor piping temperature.
Operation Frequency for Compressor
37
PE9DKE
13
7
6
5
0
Comp Off
Normal Control
Up Zone
Fixed
Down Zone
2 .Indoor Fan Control
Indoor fan speed changes according to the indoor fan speed.
Cool:6Dry:2
10
Free
Up Zone
Cool:9Dry:5
22
15
8
38
25
18
11
37
>40Hz
22
15
8
10-64Hz
38
25
18
11 10-64Hz
12-64Hz
PE12DKE
Outdoor Air Temp
Outdoor Air Temp
Anti-freezing Control
Outdoor Air Temp Control
CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
8.3 Cooling Operation
>40Hz
13-51Hz
13-51Hz
13-51Hz
13-51Hz
10-64Hz
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Anti-Fog Protection
Outdoor Air Temp PE9DKE PE12DKE
0-30 a 45 58
30-90 b 40 54
90-420 c 40 54
0-30 a 45 58
30-90 b 40 54
90-420 c 35 46
0-30 a 35 46
30-90 b 35 46
90-420 c 35 46
0-30 a 35 4630-90 b 35 46
90-420 c 35 46
800 850
960 1020Indoor Fan Speed B
2 >30
30
40Hz8Hz/45s Down
Fixed
40-51Hz(*1)40-64Hz(*2)
The frequency for the compressor will change accordingto the outdoor piping temperature.*1 PE9DKE*2 PE12DKE
2
31
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Method of frequency shifting is the same to that of cooling operation and the intake air temperature is measuredevery second.
2.5
TemperatureShifting
Thermo-Off
Initial Frequency for Compressor
T=Outdoor Air Temp-Remote Control Setting Temp
Thermostat Features
0.5
-2.5
Indoor Fan Control
1. 5
TemperatureShifting
Thermo-Off
0.5
-2.5
Dr y Slo
Cool
Indoor Air Temp-
Set Temp
Indoor Air Temp-Set Temp
8.4 Soft Dry Operation
PE9DKE PE12DKE
T
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K11
K9
K7
K5
K3
K1
Up
K6
K4
K2
K0Stop
K11
K9
K7
K5
K3
K1
Up
K6
K4
K2
K0Stop
Max.
Fixed
Down
Lo-
Slo
Max.
Fixed
Down
Lo-
Slo
Max. Lo Max.Lo
2.During heating operation, the maximum fan speed is Lo when the compressor stops.
3.Hot Start
When the heating operation starts, the indoor fan stops and the compressor runs with the frequency of 117Hz.
This is to prevent the cold airflow from blowing.
If the piping temperature rises to 19 , and the indoor fan speed and airflow direction varies with the indoor piping
temperature, the hot start control is completed.
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Auto Fan Speed
FixedK8
K10
UpK8
K10
Overload Protection Control
The frequency for the compressor is determined by indoor piping temperature.
60 Stop
53
5Hz/30s Down
Min. 40 Hz
Fixed
Min. 40 Hz
Max.47 Hz
Max.62 Hz
Min. 40 HzMax.110Hz
48
46
44
55
52
48
Outdoor Air Temp Control
One minute after the start-up of the compressor, outdoor air temperature control starts.
Max. 64Hz
23 Min. 40Hz
Max. 110Hz
Min. 40Hz
Free
16
21
14
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Time Graph
Free
1
23
4
5
Free
FreeOFF Free
OFF
OFF
ON
ON
Deice Operation
ON
ON
Frequency for Compressor
Indoor Unit
Outdoor Fan
4-wayValve
17
13
10
-1
DeiceTerminated
FrequencyFor Compressor
Indoor Fan
Outdoor Fan
4-way Valve
PE12DKE
1 2 3 4 5 6 7
PE9DKE 58Hz
58Hz
51Hz
51Hz
51Hz
51Hz
58Hz
58Hz
71Hz
71Hz
99Hz
99Hz
99Hz
99Hz
ON OFF OFF OFF OFF ON ON
OFF OFF OFF OFF ON ONON
OFF OFF OFF OFF ON ONON
New JIS Deice Operation
Deice operation starts immediately after the deice instruction is received. But the first deice operation starts 1 hour after the heating operation is activated.1.Outdoor heat exchanger temperature is lower than3 for 30minutes.2.Outdoor heat exchanger temperature is lower than -1 continuously for 3 minutes.
6 7
T1
T2
T3 T4 T5 T6 T7
Outdoor HeatExchanger Temperature.
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Normal Deice Operation
Deice operation will start as the deice operation instruction is launched. But the first deice operation starts one hour after
the heating operation starts.
If one of the following situations exists, the instruction of the deice will be launched: The outdoor heat exchanger
temperature remains less than 3 for 120 minutes and -6 for 3 minutes continuously, the outdoor air temperature
is higher than -1 and the compressor is on.
The outdoor heat exchanger temperature remains less than 3 for 80 minutes and -7 for 3 minutes continuously,
the outdoor air temperature is higher than -1 and the compressor is on
The outdoor heat exchanger temperature remains less than 3 for 40 minutes and -9 for 3 minutes continuously,
the outdoor air temperature is higher than -3 and the compressor is on
The outdoor heat exchanger temperature remains less than 3 for 40minutes and -11 for 3 minutes continuously,
the outdoor air temperature is lower than -3 and the compressor is on
Note: The first deice operation occurs 60 minutes after the beginning of the operation.
Time GraphFree
1
23
4
5
Free
FreeOFF Free
OFF
OFF
ON
ON
Deice Operation
ON
ON
Frequency for Compressor
Indoor Unit
Outdoor Fan
4-wayValve
18
15
9
-2
Deice
Terminated
FrequencyFor Compressor
Indoor Fan
Outdoor Fan
4-way Valve
PE12DKE
1 2 3 4 5 6 7
PE9DKE 40Hz
40Hz
65Hz
65Hz
40Hz
40Hz
40Hz
40Hz
65Hz
65Hz
0Hz
0Hz
0Hz
0Hz
ON OFF OFF OFF OFF OFF ON
OFF OFF OFF OFF O N ONON
OFF OFF OFF OFF OFF ONON
6 7
T1
T2
T3 T4 T5 T6 T7
Outdoor HeatExchanger Temperature.
35
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If the Auto operation mode is selected, the operation mode will be judged by set temperature on remotecontrol, intake air temperature and outdoor air temperature.During operating mode judgement, indoor fan runs at low fan speed and outdoor fan runs in the purposeof detecting the intake air temperature and outdoor air temperature (for 20 seconds)
HEAT COOL DRY
0
1
2 3
T3
4
36
28
27
2625
24
23
22
21
20
19
18
17
16
T1
T2
01
2
3
13 19 21 23 25 Outdoor Air Temp
Set Temp
Set Temp onRemote Control T1 T2 T3
16,17,18
19,20,21,22
23,24,25,26
27,28,29,30
+10
+8
+7
+6
-3
-3
-3
-3
-5
-7
-7
-8
If the operation mode changed, T1, T2, T3 will change as follow:
Heating Cooling /Soft Dry Operation: +2
Cooling /Soft Dry Heating Operation: -2
5
Set Temp=Remote Set Temp + T
8.6 Automatic Operation
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Delay ON Timer ca be set using remote controller, the unit with timer set will start operate earlier than
the setting time. This is to provide a comfortable environment when reaching the set On time.
Seventy minutes before the set time for ON Timer or ON-OFF Timer setting, indoor ( at fan speed of
Lo-) and outdoor fan motor start operate for 20 seconds to determine the indoor intake air
temperature and outdoor air temperature in order to judge the operation mode.From the above judgment, the decided operation will start operate earlier than the set time as shown
below.
Indoor intake air temperature ( )
30
25
30 25
10 Min
5 MinOutdoor air temperature ( )
Indoor intake air temperature ( )
15
5
0 5
45 Min
50 Min Outdoor air temperature ( )
Cooling/Soft Dry Heating
Timer Signal Receiving Sound During Operation
Operation Sound Timer LED Timer Setting
ON Timer Set OFF Beep- ON ValidOFF Timer Set ON Beep ON Valid
ON-OFF Timer Set OFF Beep- ON ValidOFF-ON Timer Set ON Beep ON Valid
Operation Sound Timer LED Timer SettingON Timer Set OFF Beep ON ValidOFF Timer Set OFF None OFF Invalid
ON-OFF Timer Set OFF Beep ON ValidOFF-ON Timer Set OFF None OFF Invalid
Timer Signal Receiving Sound When the Air Conditioner Stops
15 Min 40 Min
8.8 Auto Restart Control
If there is a power failure, operation will be automatically restarted after 3-4 minutes when the power isresumed. It will st art with previous operation mode and airflow direction.
8.7 Delayed ON-Timer Control
37
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8.9 Air Quality Sensor Control
20minutes
MAX1 MAX2 MAX3
MAX0 MAX1 MAX2
Maximum of Rs
MAXR1 of previousmeasuring period
Updating of MAXR MA X1 MA X0 M AX 0
MAX1 MAX0 MAX1
M AX 2 M AX 1 MA X1
MAX2 MAX1 MAX 2
MA X3 MA X2 M AX 2
MAX3 MAX 2 M AX 3
20minutes20minutes
The following conditions should be fulfilled
The initial MAXR after the preheating of the air quality sensor when the air conditioner is turned on:
The air conditioner will compare the maximum value of the current measuring period (MAX) with the
resistance reference 109 minutes before ( MAXR0) and select the bigger one as the current resistance
reference(MAXR).
When the air conditioner determines the air quality is getting worse: Air quality level 1 Air quality level 2,
MAXR will not be updated; When the air quality gets better (air quality level 0), Rs detected at this time will be
MAX and MAXR.
The air conditioner will not detect the air quality during deicing operation. The indication prior to the deicing
operation will be held during the deicing operation.
(d )
(e )
(f )
Basic Operation
Detecting and indicating of the air quality will not stop during the operation of the air conditioner.The power of the air quality sensor is always on during the operation of the air conditioner. When the air conditioner stops (The air conditioner is on standby.), the air conditioner will provide power to the air qualitysensor intermittently (It will be on for 3 minutes after each 109 minutes.) for the purpose of air quality detecting.Within 2 minutes after the air conditioner starts to operate, the air quality sensor is in the process of preheatingand the air quality indicator is red.
Resistance Reference
Detecting of air quality( During the operation of the air conditioner)(a) The measuring period is 20 minutes; The air conditioner will measure the resistance (Rs) of the air quality
sensor once each 2 seconds and record the data. The maximum Rs within the 20 minutes will be selected asRs(MAX) for this measuring period.
(b) Suppose the current Rs(MAX) as MAX and the resistance reference of the previous measuring period is asMAXR1.; If MAX>MAXR1, the resistance reference of the current measuring period is MAXR=MAX; If MAX
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39
Air Quality Control
Detecting of air quality(When the air conditioner is on standby.)Rs/MAXR will be calculated automatically every 2 seconds and the air quali ty level will be determined in
accordance with the value below,
Signal of Air Quality Sensor Air Quality Level
A i r Q u a l i t yGetting Worse
A i r Q u a l i t yGetting Better
Rs/MAXR G1 (0) (1)
Rs/MAXR G2 (2 )(1)
Rs/MAXR G3 (2) (1)
Rs/MAXR G4 (1) (0)
Air Quality Level and Indicator
During preheating of the air quality sensor the air quality indicator is red.The color of the air quality indicator varies with the air quality level: Ai r P ol lu ti on Level 0: Green Ai r P ol lu ti on Level 1:Orange Ai r P ol lu tion Level 2:Red
(0 )
(1 )
(2 )
*G1=0.85
*G2=0.60
Set the sensitivity number of the air quality sensor as 2 (Standard)
A i r q u a l i t ybecomes better
A i r q u a l i t ybecomes worse
Detecting of air quality( When the air conditioner is on standby.)
(a) After the air conditioner stops operation, it will provides power to the air quality sensor intermittently to detect
the air quality and update the resistance reference (MAXR). The power of the air quality sensor will be on for 3
minutes after each 109 minutes.
During these 3 minutes, the air quality sensor will be in preheating process for 2 minutes and the other time is
for measuring the resistance. The air conditioner will compare the maximum resistance measured in this period
with the maximum value in the previous 109 minutes and the bigger one wil l be selected as resistance
(b)
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40
Added Operation of Air Quality Sensor
When the air quality getting worse
If the air pollution level changes from 0 to 2, the color of the air quality indicator changes as below,Green Orange (2 Sec.) Red
When the air quality getting better (added operation )
If the air pollution level changes from 2 to o, the color of the air quality indicator changes as below,
R ed ( 60 S ec . ) O ra nge ( 6 0S ec .) Gr een
Judgment during added operation
During added operation, if the air quality sensor judges that the air quality is getting worse, the added operation will
be stopped immediately and the air quality indicator will shift to normal indication. If the air quality getting better,
the air conditioner will judge the air quality until the added operation is finished.
Sensitivity Control of Air Quality Sensor
The sensitivity number can be changed through the following procedure
1.Keep the SET button on the remote control depressed continuously for 5 seconds to select sensitivity control
m ode.2.The previous sensitivity setting will be displayed in the temperature display.
3.Press or button on the remote control to change the sensitivity
“0”=Turn off the air quality indicator “1”= Low Sensitivity“2”=Standard Sensitivity“3”=High Sensitivity................
…………....G1=0.70, G2=0.45, G3=0.48, G4=0.73………G1=0.85, G2=0.60, G3=0.63, G4=0.88
G1=0.90, G2=0.65, G3=0.68, G4=0.93
Within 10 seconds after the sensitivity setting is finished, other settings are not available. The display of the remote
control will change back to normal without pressing any button.
Forced Resetting
Forced Resetting Time (The added operation time mentioned later not included.)
(a) Air Pollution Level 2: Red: 5 minutes Orange: 8 minutes Green
(B) Air Pollution Level 1: Red: 5 minutes Orange: 8 minutes Green
Timer Resetting
When the forced resetting mode is determined and the following conditions are fulfilled, the timer is reset.
1) The air quality changes which results in the changing of the color of the air quality indicator.
2) Compare Rs detected in current 2 seconds with R1 detected in previous 2 seconds and Rs/R1
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9 Installation InstructionsRequired tools for Installation Works
1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench
18 N.m (1.8 kgf.m)42 N.m (4.2 kgf.m)
kgf.m)3. Electric drill, hole core drill
(ø70 mm)7. Reamer 11. Thermometer 15. Vacuum pump
4. Hexagonal wrench (4 mm) 8. Knife 12. Megameter 16. Gauge manifold
9.1. Safety Precautions Read the following “SAFETY PRECAUTIONS” carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuitfor the model to be installed.
The caution items stated here must be followed because these important contents are related to safety. The meaning of eachindication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and theseriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties only.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care andmaintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
electrical shock.4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly
done, the set will drop and cause injury.5. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and single
outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.6. Use the specified cable (1.5 mm 2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no
external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.7. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will
cause heat-up at connection point of terminal, fire or electrical shock.
8. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle.Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.9. When connecting the piping, do not allow air or any substances other than the specified refrigerant (R410A) to enter the
refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, andpossibly result in explosion and injury.
10. When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may causeabnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use onlyR410A materials.
Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8mm.
It is desirable that the amount of residual oil is less than 40 mg/10 m.11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with
other electrical appliances. Otherwise, it will cause fire or electrical shock.
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1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.
2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates atsurrounding of the unit, it may cause fire.
3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
1. Selection of the installation location.Select a installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.
2. Power supply connection to the room air conditioner.Connect the power supply cord of the room air conditioner to the mains using one of the following method.Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency.In some countries, permanent connection of this room air conditioner to the power supply is prohibited.
1. Power supply connection to the receptacle using a power plug.Use an approved 15A/16A power plug with earth pin for the connection to the socket.
2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 15A/16A circuit breaker for thepermanent connection. It must be a double pole witch with a minimum 3.5 mm contact gap.
3. Do not release refrigerant.Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts. Take care of theliquid refrigerant, it may cause frostbite.
4. Installation work.It may need two people to carry out the installation work.
5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
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SELECT THE BEST LOCATION
INDOOR UNIT
OUTDOOR UNIT
Indoor/Outdoor Unit Installation Diagram
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CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Attached accessories.
1
No. Accessories part Qty. No. Accessories part Qty.
1
2
3
4
Installation plate
Installation plate fixingscrew
Remote control
Battery
1
5
1
2
5
Drain elbow
16
Connecting Wire (Connector)
Indoor/Outdoor Unit Installation Diagram
About 1.1 m
Piping direction Attention not tobend up drain hose
Length of power supply cord
Right
Right BottomRight Rear
LeftRear Left Bottom
Left
(Front side)
About 1.8 m
< < < <
There should not be any obstacles blocking the air circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken intoconsideration.Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the wall,ceiling, fence or other obstacles.
Recommended installation height for indoor unit shallbe at least 2.5 m.
There should not be any heat source or steam near the unit.
If an awning is built over the unit to prevent directsunlight or rain, be careful that heat radiation from thecondenser is not obstructed.
There should not be any animal or plant which couldbe affected by hot air discharged.
Keep the spaces indicated by arrows from wall,ceiling, fence or other obstacles.
Do not place any obstacles which may cause a shor t
circuit of the discharged air.If piping length is over the common length, additionalrefrigerant should be added as shown in the table.
Piping size Max.PipingLength
(m)
15
CommonLength
(m)
7.5
Max.Elevation
(m)
5
AdditionalRefrigerant
(g/m)
20
Gas
3/8"
Liquid
1/4"
This illustration is for explanation purposes only.The indoor unit will actually face a different way.
Installation plate 1
Sleeve ( )Bushing Sleeve ( )
Putty (Gum type sealer) ( )
Vinyl tape (Wide) ( ) Apply aft er carr ying out adrainage test.To carry out the drainagetest, remove the air filtersand pour waterintothe heatexchanger.
Saddle ( )
5-CORE WIRE/1.5 mm 2
Typedesignation245 IEC57or heavier cord
Additional drain hose ( )
Bend the pipe as closely onthe wall as possible, but becareful that it doesn t break.
Installation parts youshould purchase ( )
Gas side piping ( ) 3/8"
1/4" Liquid side piping ( )
1 0 c mo r m o r e
1 0 c m
o r m o
r e
1 0 0 c m
o r m o r e
Connecting cable
5 c m
o r m o r e
5 cmor more
3 0 c m o r m o r e
(Left and right are identical)
Insulation of piping connections
Carry out insulationafter checking for gas leaks andsecure with vinyltape.
Vinyl tape
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9.2.1. SELECT THE BEST LOCATION(Refer to “Select the best location ”section)
9.2.2. HOW TO FIX INSTALLATIONPLATE
The mounting wall is strong and solid enough to prevent it fromthe vibration.
The centre of installation plate should be at more than 450 mmat right and left of the wall.
The distance from installation plate edge to ceiling should morethan 75 mm.
From installation plate left edge to unit’s left side is 74 mm.
From installation plate right edge to unit’s right is 94 mm.
:
:
For left side piping, piping connection for gas should beabout 45 mm from this line.For left side piping, piping connecting cable should beabout 800 mm from this line.
1. Mount the installation plate on the wall with 5 screws or more.
(If mounting the unit on the concrete wall consider usinganchor bolts.)
Always mount the installation plate horizontally byaligning the marking-off line with the thread and using alevel gauge.
2. Drill the piping plate hole with ø70 mm hole-core drill.
Line according to the arrows marked on the lower left
and right side of the installation plate. The meeting pointof the extended line is the centre of the hole. Another
method is by putting measuring tape at position as
shown in the diagram above. The hole centre isobtained by measuring the distance namely 105 mm
and 145 mm for left and right hole respectively.
Drill the piping hole at either the right or the left and the
hole should be slightly slanted to the outdoor side.
9.2.3. TO DRILL A HOLE IN THE WALLAND INSTALL A SLEEVE OFPIPING
1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the wall.
CautionWhen the wall is hollow, please be sure to use thesleeve for tube ass’y to prevent dangers caused bymice biting the connecting cable.
4.Finish by sealing the sleeve with putty or caulkingcompound at the final stage.
9.2.4. INDOOR UNIT INSTALLATION1. For the right rear piping
2. For the right and right bottom piping
9.2. INDOOR UNIT
- 44 -
B
Wall WallMore than 450 mm More than 450 mm
Screw 2
150 mm
219 mm125 mm
Measuring tape
A
Installationplate 1
224mm
B
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Drain hose
Connecting cable
Adjust the piping slightly downwards.
Piping
Drainhose
Slee ve forpiping hole
Connecting cable
More than approx. 95 cm
Installthe IndoorUnit
Hook the indoor unit onto theupper portion of installation plate(Engage the indoor unit with theupper edge of the installationplate). Ensure the hooks areproperly seated on the installationplate by moving in left and right.
Hooks atinstallationplate
Slee ve forpiping hole
Piping
Drain hose
Indoor unit
Installationplate
hook Unit's
Securethe IndoorUnit
1. Tape the extra power supply cord in abundle and keep it behind the chassis .
Ensure t hat the power supply cord isnot clamped in between the unit's hook (2 positions) and installation plate.
2. Press the lower left and right side of theunit against the installation plate untilhooks engages with their slots(sound click).
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9.2.5. CONNECT THE CABLE TO THEINDOOR UNIT
1. The inside and outside connecting cable can be connectedwithout removing the front grille.
2. Connecting cable between indoor unit and outdoor unitshall be approved polychloroprene sheathed 54 x 1.5 mm 2 flexible cord, type designation 245 IEC57 or heavier cord.
Ensure the color of wires of outdoor unit and theterminal Nos. are the same to the indoor’s respectively.
Earth lead wire shall be longer than the other lead wiresas shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.
Secure the cable onto the control board with the holder (clamper).
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S-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Terminals on the indoor unit
Color of wires
Terminals on the outdoor unit
1(L) 2(N) 3
1(L) 2(N) 3
2(N)1(L) 3
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HOW TO TAKE OUT FRONT GRILLE
Please follow the steps below to take out front grille if necessary such as when servicing.
1. Set the vertical airflow direction louver to the horizontalposition.
2. Slide down the two caps on the front grille as shown in theillustration at right, and then remove the two mountingscrews.
3. Pull the lower section of the front grille towards you toremove the front grille.
When reinstalling the front grille, first set the verticalairflow direction louvre to the horizontal position andthen carry out above steps 2 - 3 in the reverse order.
9.3. OUTDOOR UNIT9.3.1. SELECT THE BEST LOCATION
(Refer to “Select the best location ”section)
9.3.2. INSTALL THE OUTDOOR UNIT
After selecting the best location, start installation accordingto Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and horizontallyby bolt nut. (ø10 mm).
2. When installing at roof, please consider strong wind andearthquake. Please fasten the installation stand firmly withbolt or nails.
9.3.3. CONNECTING THE PIPINGConnecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portionof tube assembly) onto the copper pipe. (In case of using longpiping)
Connect the piping
Align the center of piping and sufficiently tighten the flarenut with fingers.
Further tighten the flare nut with torque wrench in specifiedtorque as stated in the table.
MODEL Piping size (Torque)Gas Liquid
PE9DKE3/8” (42 N.m) 1/4” (18 N.m)
PE12DKE
Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Removeburrs from cut edge. Make flare after inserting the flare nut(located at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torquewrench to the specified torque as stated in the table.
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CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Unit: mm
570
1 3
. 9
3 2 0
103.9
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CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is notremoved, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3. Please make flare after inserting the flare nut onto the
copper pipes.
9.3.4. (a) EVACUA TION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION)
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in thefollowing procedure.
1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.
Be sure to connect the end of the charging hose with the push pin to the service port.
2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor.
3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.
4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does notmove after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.
5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve.
6. Tighten the service port caps of the 3-way valve at torque of 18 N.m with a torque wrench.
7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonalwrench (4 mm).
8. Mount valve caps onto the 2-way valve and the 3-way valve.
Be sure to check for gas leakage.
CAUTION If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:
If the leak stops when the piping connections are tightened further, continue working from step 3.
If the leak does not stop when the connections are retightened, repair the location of leak.
Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may causefrostbite.
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(1) *
*
Connect the manifold gauge to the service port of 3-wayvalve.Measure the pressure.
(2) *
*
Keep it for 5-10 minutes.Ensure that the pressure indicated on the gauge is thesame as that of measured during the first time.
9.3.5. (b) AIR PURGING OF THE PIPING AND INDOOR UNITThe remaining air in the Refrigeration cycle which contains moisture may cause malfunction on the compressor.
1. Remove the caps from the 2-way and 3-way valves.
2. Remove the service-port cap from the 3-way valves.
3. To open the valve, turn the valve stem of 2-way valve counter-clockwise approx. 90° and hold it there for ten seconds, thenclose it.
4. Check gas-leakage of the connecting portion of the pipings.For the left pipings, refer to item 4(A).
5. To open 2-way valve again, turn the valve stem counter-clockwise until it stops.
4(A). Checking gas leakage for the left piping.
9.3.6. CONNECT THE CABLE TO THE OUTDOOR UNIT1. Remove the control board cover from the unit by loosening the screw.
2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm 2 flexible cord,type designation 245 IEC 57 or heavier cord.
3. Secure the cable onto the control board with the holder (clamper).
4. Attach the control board cover back to the original position with the screw.
9.3.7. PIPE INSULATION
1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrapthe insulated piping end to prevent water from going inside the piping.
2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAMwith thickness 6 mm or above.
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CS-PE9DKE / CU-PE9DKE / CS-PE12DKE / CU-PE12DKE
Terminals on the indoor unitColour of wires Terminals on the outdoor unit
1(L) 2(N) 3
1(L) 2(N) 3
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DISPOSAL OF OUTDOOR UNIT DRAIN WATER
If a drain elbow is used, the unit should be placed on astand which is taller than 3 cm.
If the unit is used in an area where temperature falls below0°C for 2 or 3 days in succession, it is recommended not touse a drain elbow, for the drain water freezes and the fanwill not rotate.
CHECK THE DRAINAGE
Open front panel and remove air filters.(Drainage checking can be carried out without removing thefront grille.)
Pour a glass of water into the drain tray-styrofoam.
Ensure that water flows out from drain hose of the indoor unit.
EVALUATION OF THE PERFORMANCE
Operate the unit for fifteen minutes or more.
Measure the temperature of the intake and discharge air.
Ensure the difference between the intake temperature andthe discharge is more than 8°C during cooling operation or
CHECK ITEMS
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nutconnection?
Is the connecting cable being fixed to terminal board firmly?
Is the connecting cable being clamped firmly?
Is the drainage OK?(Refer to “Check the drainage” section)
Is the earth wire connection properly done?
Is the indoor unit properly hooked to the installation plate?
Is the power supply voltage complied with rated value?
Is there any abnormal sound?
Is the cooling operation normal?
Is the thermostat operation normal?
Is the remote control’s LCD operation normal?
Is the air purifying filter installed?
- 50 -
14°C during heating operation.
Discharge air
Install the hose at an angle so that thewater smoothly flows out.
HoseDrain elbow 5
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10 Installation and Serving Air Conditioner Using R410A10.1. OUTLINE10.1.1 About R410A Refrigerant1. Converting air conditioners to R410A
Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose
a destructive danger to the ozone layer in the earth´s upper stratosphere (20 to 40 km above the earth), measures have beentaken around the world to prevent this destruction.The R22 refrigerant which has conventionally been used in ACs is an HCFC refrigerant and, therefore, possesses this ozonedestroying potential. International regulations (the Montreal Protocol Ozone-Damaging Substances) and the domestic laws of various countries call for the early substitution of R22 by a refrigerant which will not harm the ozone layer.
In ACs, the HFC refrigerant which has become the mainstream alternative called R410A.Compared with R22, thepressure of R410A is approximately 1.6 times as high at the same refrigerant temperature, but the energyefficiency is about the same. Consist ing of hydrogen (H), f luorine (F) and carbon (C), R410A is an HFCrefrigerant. Another typical HFC refrigerant is R407C. While the energy efficiency of R407C is some what inferior to that of R410A, it offers the advantage of having pressure characteristics which are about the same as those of R22, and is used mainly in packaged Acs.
2. The characteristics of HFC (R410A) refrigerantsa. Chemical characteristics
The chemical characteristics of R410A are similar to those of R22 in that both are chemically stable, non-flammable refrigerants with low toxicity.However, just like R22, the specific gravity of R410A gas is heavier than that of air. Because of this, it can causean oxygen deficiency if it leaks into a closed room since it collects in the lower area of the room. It also generatestoxic gas when it isdirectly exposed to a flame, so it must be used in a well ventilated environment where it willnot collect.
Table 1 Physical comparison of R410A and R22
Composition (wt%)
Boiling point (°C)
Vaporizing pressure (25°C)
Saturated vapor density
Flammability
Ozone-destroying point (ODP)
Global-warming point (GWP)
R410A
R32/R125(50/50)
-51.4
1.56 Mpa(15.9 kgf/cm2)
64.0 kg/m3
Non-flammable
0
1730
R22
R22(100)
-40.8
0.94 Mpa(9.6 kgf/cm2)
44.4 kg/m3
Non-flammable
0.005
1700
b. Compositional change (pseudo-azeotropic characteristics)
R410A is a pseudo-azeotropic mixture comprising the two components R32 and R125. Multi-component
refrigerants with these chemical characteristics exhibit little compositional change even from phase changes
due to vaporization 9or condensation), which means that there is little change in the circulating refrigerant
composition even when the refrigerant leaks from the gaseous section of the piping.
Acco rdingly, R410A can be hand led in almost the same manner as the sing le-component re fr igeran t R22.
However, when charging, because there is a slight change in composition between the gas phase and the liquidphase inside a cylinder or other container, charging should basically begin with the liquid side.
c. Pressure characteristics As seen in Table 2, the gas pressu re of R410A is approximat ely 1.6 t imes as high as that of R2 2 a t the samerefrigerant temperature, which means that special R410A tools and materials with high-pressure specificationsmust be used for all refrigerant piping work and servicing.
Table 2 Comparison of R410A and R22 saturated vapor density
R410A
0.30
0.70
1.35
2.30
3.73
4.15
R22
0.14
0.40
0.81
1.42
2.33
2.60
Refrigerant Temperature( )
-20
0
20
40
60
65
°C
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d. R410A refrigerating machine oilConventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machineoil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is atendency for the refrigerating machine oil to collect in the refrigerating cycle. For this reason, polyester ando